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    POLYVINYL ACETAL RESIN FILM, AND LAMINATE COMPRISING SAME
    3.
    发明申请
    POLYVINYL ACETAL RESIN FILM, AND LAMINATE COMPRISING SAME 有权

    公开(公告)号：US20210394494A1

    公开(公告)日：2021-12-23

    申请号：US17279316

    申请日：2019-09-25

    申请人： KURARAY CO., LTD.

    发明人： Yuhi SHIMAZUMI ,  Takeshi KUSUDOU ,  Koichiro ISOUE ,  Hirotaka YASUDA ,  Takuya KOBAYASHI

    IPC分类号： B32B17/10 ,  C08F16/38 ,  C08J5/18

    摘要： The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material, wherein the polyvinyl acetal resin film has a thickness of 10 to 350 μm, one surface has a 10-point average roughness Rz value of less than 2 μm and a friction angle of larger than 31° but 40° or smaller, the other surface has a 10-point average roughness Rz value of 2 μm to 7 μm and a friction angle of 20° to 31°, a viscosity of a toluene/ethanol (1:1, mass ratio) solution containing 10%-by-mass of a polyvinyl acetal resin contained in the polyvinyl acetal resin material, which is measured at 20° C. and 30 rpm using a Brookfield-type (B-type) viscometer, is 100 to 1,000 mPa·s, and the amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.

    Binder for electrical storage device electrode
    5.
    发明授权
    Binder for electrical storage device electrode 有权

    公开(公告)号：US10784513B2

    公开(公告)日：2020-09-22

    申请号：US15748787

    申请日：2016-09-14

    申请人： SEKISUI CHEMICAL CO., LTD.

    发明人： Hiroyuki Morita ,  Yasuharu Nagai

    IPC分类号： H01M4/131 ,  H01M10/0525 ,  C08F8/28 ,  H01M4/62 ,  C08F16/38 ,  H01M4/13

    摘要： The present invention aims to provide a binder for a power storage device electrode which exhibits thermal energy stability over a wide temperature range covering from a high-temperature condition to a low-temperature condition when used as a binder for a power storage device electrode, and which enables production of a high-capacity storage battery with a small irreversible capacity and low resistance to have excellent output characteristics. The present invention also aims to provide a binder for a power storage device electrode which is excellent in dispersibility of an active material and adhesiveness, which improves the flexibility of an electrode to be obtained, and which has high resistance against electrolytes to enable production of a high-capacity storage battery even when the added amount thereof is small. The present invention further aims to provide a composition for a power storage device electrode, a power storage device electrode, and a power storage device each prepared using the binder for a power storage device electrode. The present invention relates to a binder for a power storage device electrode used for an electrode of a power storage device, the binder including a polyvinyl acetal resin, the polyvinyl acetal resin having a meso/racemo ratio of an acetal ring structure of 10 or higher and a hydroxy group content of 30 to 60 mol %.

    Laminated glass intermediate film and laminated glass
    7.
    发明授权
    Laminated glass intermediate film and laminated glass 有权

    公开(公告)号：US10688758B2

    公开(公告)日：2020-06-23

    申请号：US14211336

    申请日：2014-03-14

    申请人： SEKISUI CHEMICAL CO., LTD.

    发明人： Michio Shimamoto ,  Shota Matsuda ,  Sinyul Yang ,  Kohei Kani ,  Tatsuya Iwamoto

    IPC分类号： B32B17/10 ,  B32B27/30 ,  C08F16/38 ,  B32B27/08 ,  B32B27/22 ,  C08F216/38 ,  C08L29/14

    摘要： The present invention provides an intermediate film for laminated glass which can improve sound insulation. The intermediate film has a layered structure including at least two layers, comprising: a first layer containing a polyvinyl acetal resin and a plasticizer; and a second layer positioned on a first surface of the first layer. In a phase diagram of three values including a degree of acetalization, a degree of acetylation, and a hydroxyl group content of the polyvinyl acetal resin contained in the first layer, the values of the degree of acetalization, the degree of acetylation, and the hydroxyl group content each fall within a region surrounded by a line including four straight lines connecting first, second, third, and fourth coordinates, which respectively have a degree of acetalization:degree of acetylation:hydroxyl group content of 70 mol %:30 mol %:0 mol %, 34 mol %:30 mol %:36 mol %, 94 mol %:0 mol %:6 mol %, and 100 mol %:0 mol %:0 mol %.

    Golf ball
    9.
    发明授权
    Golf ball 有权

    公开(公告)号：US09789365B2

    公开(公告)日：2017-10-17

    申请号：US14841017

    申请日：2015-08-31

    申请人： DUNLOP SPORTS CO., LTD.

    发明人： Satoko Okabe ,  Masatoshi Yokota

    IPC分类号： A63B37/00 ,  C08F16/38

    CPC分类号： A63B37/0039 ,  A63B37/0045 ,  A63B37/0075 ,  C08F16/38

    摘要： An object of the present invention is to provide a golf ball showing excellent impact durability. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the golf ball comprises a reinforcing layer containing a polyvinyl acetal resin on the surface of the spherical core.

    Polyoxyalkylene-modified vinyl acetal polymer, and composition comprising same
    10.
    发明授权
    Polyoxyalkylene-modified vinyl acetal polymer, and composition comprising same 有权
    聚氧化烯改性的乙烯基缩醛聚合物及其组合物

    公开(公告)号：US09410003B2

    公开(公告)日：2016-08-09

    申请号：US14001569

    申请日：2012-02-24

    申请人： Masako Kawagoe ,  Shinsuke Nii

    发明人： Masako Kawagoe ,  Shinsuke Nii

    IPC分类号： C08L29/04 ,  C08L29/14 ,  C08F116/38 ,  C08F16/38 ,  C08F8/48 ,  C08F218/08 ,  C08F8/10 ,  C08F216/38 ,  C08F220/58 ,  C08F216/14

    CPC分类号： C08F116/38 ,  C08F8/10 ,  C08F8/48 ,  C08F16/38 ,  C08F216/1416 ,  C08F216/38 ,  C08F218/08 ,  C08F220/58 ,  C08L29/14

    摘要： There is provided a polyoxyalkylene-modified vinyl acetal polymer which has polyoxyalkylene groups represented by general formula (I) in side chain, in which a viscosity-average polymerization degree P is 150 to 5000, an acetalization degree is 10 to 85 mol % and a polyoxyalkylene modification rate S is 0.1 to 10 mol %. Such a polymer has a feature that a film or sheet produced therefrom has improved film strength and flexibility, as well as a feature that a resin composition therefrom is free from phase separation. wherein R1 represents a hydrogen atom or a methyl group, R2 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and 1≦m≦10 and 3≦n≦20.

    摘要翻译： 提供在侧链中具有由通式（I）表示的聚氧化烯基的聚氧化烯改性的乙烯醇缩醛聚合物，其粘度平均聚合度P为150〜5000，缩醛化度为10〜85摩尔％， 聚氧化烯改性率S为0.1〜10摩尔％。 这样的聚合物具有由其制造的膜或片材具有改善的膜强度和柔软性以及其中的树脂组合物不相分离的特征。 其中R1表示氢原子或甲基，R2表示氢原子或碳原子数1〜8的烷基，1≤m≤10且3≤n≤20。